This manual covers the Yamaha 90ETLJ Outboard, a 90 horsepower outboard motor produced in 1986. Engineered for reliability and performance, this model represents a significant advancement in marine propulsion for its era. Its robust design and efficient operation make it suitable for a wide range of boating applications, from recreational fishing to light commercial use. Understanding and maintaining this outboard motor is key to ensuring its longevity and optimal performance on the water. This comprehensive Service Repair Maintenance Manual provides detailed guidance for the Yamaha 90ETLJ Outboard. It includes step-by-step disassembly, repair, and assembly procedures, along with inspection guidelines and routine maintenance schedules. With the inclusion of exploded diagrams and searchable content, this manual is an indispensable resource for owners, technicians, and mechanics. It empowers users to perform necessary maintenance, troubleshoot issues effectively, and ensure the continued operational integrity of their outboard motor.